Polysulfide rubber modified epoxy resin anti-corrosion and anti-sewage coating, and preparation method and system thereof

Abstract

The invention belongs to the technical field of coating preparation, discloses a polysulfide rubber modified epoxy resin anti-corrosion and anti-sewage coating, a preparation method and a system thereof. The preparation system includes a dosing module, a polyurethane prepolymer synthesis module, a polysulfide rubber synthesis module, an epoxy resin modification module and a mixing module. According to the invention, the epoxy resin modification module obtains the high-performance epoxy resin, which has excellent ageing resistance and corrosion resistance and long service life; meanwhile, nanosilicon dioxide is added to increase the strength of the coating; Additionally, preservative is added, so that the corrosion resistance of the coating in the oxidizing acidic environment and the alkaline environment is obviously improved, and the coating is suitable for the corrosion prevention coating of equipment in severe corrosive environments, such as pipelines and concrete in environments such as acid-base tanks, waste water tanks, sewage treatment and the like.

Description

technical field [0001] The invention belongs to the technical field of paint preparation, and in particular relates to a polysulfide rubber modified epoxy resin anticorrosion and anti-pollution paint, a preparation method and a system. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] Epoxy resin refers to the general term for a class of polymers containing more than two epoxy groups in the molecule. It is the polycondensation product of epichlorohydrin and bisphenol A or polyol. Due to the chemical activity of the epoxy group, a variety of compounds containing active hydrogen can be used to open the ring, cure and cross-link to form a network structure, so it is a thermosetting resin. Bisphenol A epoxy resin not only has the largest output and the most complete variety, but also new modified varieties are still increasing, and the quality is constantly improving. However, the existing polysulfide ru...

AI Technical Summary

Problems solved by technology

[0007] Existing polysulfide rubber-modified epoxy resin anti-corrosion and anti-sewage coatings have poor corrosion resistance, short service life, easy to fade, and poor anti-sticking pollution performance

[0008] At present, during the operation of polyurethane prepolymer synthesis equipment, the service life of polyurethane prepolymer synthesis equipment is shortened, the efficiency is low, the safety is poor, and the accuracy of data control is poor

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